Another theory: you have some spec in your mind, write down most of it and expect the LLM to implement it according to the spec. The result will be objectively a deviation from the spec.
Some developers will either retrospectively change the spec in their head or are basically fine with the slight deviation. Other developers will be disappointed, because the LLM didn't deliver on the spec they clearly hold in their head.
It's a bit like a psychological false memory effect where you misremember and/or some people are more flexibel in their expectations and accept "close enough" while others won't accept this.
Some developers will either retrospectively change the spec in their head or are basically fine with the slight deviation. Other developers will be disappointed, because the LLM didn't deliver on the spec they clearly hold in their head.
It's a bit like a psychological false memory effect where you misremember and/or some people are more flexibel in their expectations and accept "close enough" while others won't accept this.
At least, I noticed both behaviors in myself.